From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-xd2b.google.com (mail-io1-xd2b.google.com [IPv6:2607:f8b0:4864:20::d2b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 63E0E3CB35 for ; Fri, 13 Sep 2019 02:14:09 -0400 (EDT) Received: by mail-io1-xd2b.google.com with SMTP id d17so38670472ios.13 for ; Thu, 12 Sep 2019 23:14:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=gS2qwQYj9NCV8fvjYZljf4Rbbk5yn+X50AuV2rSQ37U=; b=FHt6Qxgrj4Q0beprRgd1hcNqh3BwW8TKbP0rxTc3oBqn2sw0vWCFVSj51J0D6GpDsT Id+4bcYp5CCn4kXqSRnUaXfHiW8+kMFTCm05tBsj9L8oCoRK8xxyI2nCC1tNgGseB4pa hkNYzQK0k9e28DLtGT/S97odJEw9i1nZ65eRlVP4H30+A8xG2++VchoAlaSkWGQ/Mt+l GHwRtK2a6ZmcTRKcv7iTHF9cZnMpBQy9fJ2ArsWuy0HtLSrY71rqI4Bj+B3d2ISrGX5F 5A03WWa3SczByEyuyEr8bQveddVoq8AXmQXgMdYH+6bViKorTqOoo4bBzQYHVgISRl84 XR4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=gS2qwQYj9NCV8fvjYZljf4Rbbk5yn+X50AuV2rSQ37U=; b=Y0WIRujuC7TcG5FHKiK9CZgFJGtI5gqPo236GimkCB/IIIT4j0xVXdY8rSHbazslnU f11gj1NivVZ2VBmv2jTdiYgI5/Fqfv/Ll6DQiFSVeak1eFgi6AOFvM2K6GeWAXcxLFRX 0gyNx7y0LSoT0l00dOnChRPxkqTbowXjcuuiVJO+eVYg/nVrjAZYu0CPwFdNMAuXfyRK vQFkCCDREDHKwrnxFaj+e9ncDxxpI0XLJaCJAhtrNGMzL7uEHyBWRpZOtJ1aYjWKAGrl zg4/Ag8IpZArLGSGz08zbSbmBe0eCqwIetZOLDxGC+CJAhwbbxFqCraVQ1a+mHzR1MyA DsHw== X-Gm-Message-State: APjAAAVVHG/ezljttTB3mWUqUddX7OOR4YKgpmz+2VZI3L3JmgIDVIm4 MgN5N4NvlmjSn4/6X3dLltrdGFAmfkuPbX+1+L8= X-Google-Smtp-Source: APXvYqzOSfOmdrmVJ8ntErND5Yjby4XzpFIK94+Y4KFslDweYHTYSbm1QtCYBQ7h/M+TXAxCpEsTcBcFiZjjr4c+3tw= X-Received: by 2002:a6b:3705:: with SMTP id e5mr8941597ioa.213.1568355248733; Thu, 12 Sep 2019 23:14:08 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Dave Taht Date: Fri, 13 Sep 2019 07:13:57 +0100 Message-ID: To: David Lang Cc: Etienne Champetier , bloat Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Bloat] Dual Channel Wi-Fi X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Sep 2019 06:14:09 -0000 There's more to it than that. https://www-res.cablelabs.com/wp-content/uploads/2019/06/24150908/Dual-Chan= nel-Wi-Fi-Performance-Test-Report-June-2019.pdf On Fri, Sep 13, 2019 at 7:03 AM David Lang wrote: > > it's an optimization that will work well when there is only one person us= ing the > network, and utterly collapse when there is a lot of use. > > it assumes that 'high priority' and bulk things only move in one directio= n, it > uses more channels, which will cause more collisions with other users and= other > networks. > > a fairly typical type of idea to someone who doesn't look at what's actua= lly > happening at the RF level. > > David Lang > > On Fri, 13 Sep 2019, Etienne Champetier wrote: > > > Date: Fri, 13 Sep 2019 14:47:38 +0900 > > From: Etienne Champetier > > To: bloat > > Subject: [Bloat] Dual Channel Wi-Fi > > > > I'm curious what people on this mailing list think about this Wi-Fi > > optimisation > > > > https://www.cablelabs.com/technologies/dual-channel-wi-fi > > https://github.com/openwrt/packages/pull/9972 > > > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat --=20 Dave T=C3=A4ht CTO, TekLibre, LLC http://www.teklibre.com Tel: 1-831-205-9740